Update authorization.mdx (#21456)

Author: dinasaur404

src/content/docs/agents/model-context-protocol/authorization.mdx

@@ -22,7 +22,7 @@ You can use the OAuth Provider Library in three ways:
 
 1. **Your Worker handles authorization itself.** Your MCP server, running on Cloudflare, handles the complete OAuth flow. ([Example](/agents/guides/remote-mcp-server/))
 2. **Integrate directly with a third-party OAuth provider**, such as GitHub or Google.
-3. **Integrate with your own OAuth provider**, including authorization-as-a-service providers you might already rely on, such as Stytch and Auth0.
+3. **Integrate with your own OAuth provider**, including authorization-as-a-service providers you might already rely on, such as Stytch, Auth0, or WorkOS.
 
 The following sections describe each of these options and link to runnable code examples for each.